Opportunity at
WiseSenior Backend Software Engineer
Wise is hiring a Senior Backend Software Engineer to join its team in London. This on-site role focuses on driving centralisation and automation across partner billing…
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About This Role
Wise is hiring a Senior Backend Software Engineer to join its team in London. This on-site role focuses on driving centralisation and automation across partner billing and pricing systems. The successful candidate will build and extend reconciliation platforms to guarantee accuracy, design automated compliance controls, and deliver secure solutions for complex partner needs. This position suits an experienced developer with a product mindset, strong engineering fundamentals, and a background in…
Job Description
Wise is hiring a Senior Backend Software Engineer to join its team in London. This on-site role focuses on driving centralisation and automation across partner billing and pricing systems. The successful candidate will build and extend reconciliation platforms to guarantee accuracy, design automated compliance controls, and deliver secure solutions for complex partner needs.
This position suits an experienced developer with a product mindset, strong engineering fundamentals, and a background in object-oriented programming languages such as Java. Responsibilities include building features from end to end across billing services, contributing to architecture and code reviews, and improving system resilience. Engineers will work with event-driven architectures including Kafka, along with MariaDB and MongoDB, and will integrate AI tooling into the development lifecycle. Candidates take long-term ownership of deliverables, participate in incident resolution and on-call support, mentor teammates, and assist with hiring interviews.
Wise offers a starting salary between GBP 87,500 and 111,000 per year, supplemented by RSUs. The company considers local candidates only, though visa sponsorship transfers are supported for eligible local applicants.
Responsibilities
- Drive centralisation and automation across partner pricing and billing systems
- Build and extend reconciliation systems to guarantee pricing and billing accuracy
- Design and implement automated controls for compliance and financial integrity
- Design and build features end-to-end across billing and pricing services
- Contribute to architectural decisions and code reviews to enhance quality and reliability
- Work with event-driven architectures such as Kafka, MongoDB, and MariaDB
- Utilize AI tooling during the development lifecycle
- Participate in on-call support and incident resolution
- Mentor and support other engineers, and assist with team onboarding
- Participate in hiring interviews using company practices
Requirements
- Strong software engineering fundamentals with a track record on impactful projects
- Experience using Java or another object-oriented programming language
- Ability to design systems with a long-term approach for scaling and safe iteration
- Accountability for system availability, security, and reliability
- Commitment to best practices in testing, observability, security, and data usage
- Willingness to take an active role in incident resolution and on-call support
- Local candidacy or eligibility for a local visa sponsorship transfer
Qualifications
- Experience in fintech, payments, billing, or regulated financial domains
- Background working with B2B integrations or external partners requiring auditability
- Familiarity with compliance, audit, or regulatory system requirements
- Prior exposure to configuration-heavy domains, reconciliation systems, or event-driven architectures
Core Skills
Benefits
- Starting salary ranging from GBP 87,500 to 111,000 per year
- RSUs
Frequently Asked Questions
Answers are based only on the employer’s listing; where it doesn’t say, neither do we.
What is the location and work model for this role?
This is an on-site role located in London. The company is only considering local candidates and does not provide relocation support, though visa sponsorship transfers can be supported for local applicants.
What is the salary for the Senior Backend Software Engineer position?
The starting salary ranges from GBP 87,500 to 111,000 per year, accompanied by RSUs.
What technical stack is used in this position?
Engineers work with event-driven architectures including Kafka, as well as MongoDB and MariaDB, while utilizing AI tooling in the development lifecycle.
Are there any nice-to-have qualifications for applicants?
Preferred backgrounds include experience in fintech, payments, billing, regulated financial domains, compliance, audit requirements, B2B integrations, reconciliation systems, or event-driven architectures.
Sample Interview Questions
AI-generated questions tailored to this specific role — a preview of the full practice set.